The invention relates to the field of underwater exhaust and noise reduction, and provides a small underwater thermodynamic vehicle microbubble resistance and noise reduction device which comprises a microbubble generation film, the microbubble generation film is installed on a pressure-resistant cylindrical shell of an underwater vehicle through a microbubble generator conformal structure frame, and long-strip-shaped holes are formed in the surface of the microbubble generation film. The long edge of the long-strip-shaped hole is perpendicular to the navigation axis, gas distribution holes are formed in the underwater navigation body pressure-resistant cylindrical shell and used for communicating gas distribution header pipes in the underwater navigation body pressure-resistant cylindrical shell with all the microbubble generation films, and high-temperature waste gas of the high-pressure external combustion type thermal power device is distributed into the lower gas distribution header pipe and the upper gas distribution header pipe through the exhaust pipeline. And then the gas enters each microbubble generation film through the gas distribution holes, so that uniform gas supply at each part is realized. According to the device, the bubble drag reduction technology is applied to the underwater navigation body, the resistance of the underwater navigation body is reduced, and the propulsion noise of the underwater navigation body is absorbed and scattered through the microbubble cloud formed by the microbubbles.

    本发明涉及水下排气降噪领域,提供一种小型水下热动力航行体微气泡减阻降噪装置,包括微气泡发生薄膜,所述微气泡发生薄膜由微气泡发生器共型结构框架安装在水下航行体耐压柱壳上,所述微气泡发生薄膜的表面开设有长条孔,长条孔的长边垂直于航行轴线,水下航行体耐压柱壳上开设有气体分布孔,用于联通水下航行体耐压柱壳内的气体分布总管和各微气泡发生薄膜,排气管路将高压外燃式热动力装置的高温废气分流至下、上气体分布总管中,再经气体分布孔进入各微气泡发生薄膜,实现各部位均匀供气。本发明装置在水下航行体上应用气泡减阻技术,降低水下航行体阻力,并通过微气泡形成的微气泡云,吸收和散射水下航行体的推进噪声。


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    Titel :

    Micro-bubble resistance and noise reduction device for small underwater thermodynamic navigation body


    Weitere Titelangaben:

    一种小型水下热动力航行体微气泡减阻降噪装置


    Beteiligte:
    DENG PENG (Autor:in) / WU DONG (Autor:in) / ZHAO JUNTAO (Autor:in) / YU JIAN (Autor:in) / CAI BIAOHUA (Autor:in) / ZHANG DEMAN (Autor:in) / LI BIN (Autor:in) / WANG BO (Autor:in) / SHU XIN (Autor:in) / LIU SHU (Autor:in)

    Erscheinungsdatum :

    2023-08-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



    UNDERWATER NAVIGATION BODY, UNDERWATER NAVIGATION SYSTEM, CONTROL METHOD FOR UNDERWATER NAVIGATION BODY, AND PROGRAM

    UCHIBORI HIROSHI / IMAI RYO / FUKUSHIMA YOICHIRO et al. | Europäisches Patentamt | 2021

    Freier Zugriff


    Underwater noise emissions from bubble clouds

    Lu, N.Q. / Prosperetti, A. / Yoon, S.W. | Tema Archiv | 1990


    Micro-bubble resistance reduction on a model SES catamaran

    Latorre, Robert / Miller, Aaron / Philips, Richard | Tema Archiv | 2003